laudiero



N. LAUDIEI'IO.

REVERSING MECHANISM FOR COPPER ROLLER POLISHING MACHINES. APPLICATION FILED SEPT-24,19I5.

l 1 93,400, Patented Aug. 1, 1916 3 SHEETSSHEET I.

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REVERSING MECHANISM FOR COPPER ROLLER POLISHING MACHINES.

APPLICATION FILED SEPT.24. HHS.

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Patented Aug. 1,1916.

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REVERSING MECHANISM FOR COPPER ROLLER POLISHING MACHINES.

APPLICATION FILED SEPT. 24. I915.

1 1 9 3, k0O Patented Aug. 1, 1916.

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11111013:OLAS LAUDIERO, OF NEW YORK, N. Y.

REVERSIN G MECHANISM FOR COPPER-ROLLER-POLISHING MACHINES.

Application filed September 24., 1915.

Y '0 all whom it may concern:

Be it known that I, NICHOLAS LAUDIERO, a subject of the King of Italy, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Reversing improvements in apparatus for polishing copper rollers for engravers and photoengravers use and consists essentially in the provision of means for reversing the movement of the carriage carrying a polishing or grinding stone while the driving shaft is operated continuously in one direction.

My invention comprises further various details of construction, combinations and arrangements of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims.

My invention is illustrated in the accom panying drawings, in which:

Figure 1 is an elevation of the apparatus for polishing copper rollers. Fig. 2 is an enlarged view in elevation of the ope 'ati've parts of the present invention, parts of the machine being shown in section. Fig. 3-is a sectional view taken on line 33 of Fig. 2, and Fig. 1 is an enlarged detail in bottom plan view of parts of the invention.

Reference now being had to the details of the drawings by numeral, 1 designates the frame of the ordinary machine for polishing copper rollers having a driving shaft 2 carrying the polishing stones 3, which are adapted to bear frictionally against the cylinder 4. to be polished, which is mounted upon the shaft 2 and which cylinder is adapted to turn inside the adjustable liquid containing pan 5, all of which features to gether with others shown in Fig. 1 form the Specification of Letters Patent.

Patented Au": 1, 1915.

Serial No. 52,468.

usual construction common in machines of this character, hence further detailed construction of the same is deemed unnecessary. Suflice it to say that the shaft 2 drives a counter shaft 6 through the medium of the belted connections 7 between the pulleys 8 and 9 mounted respectively upon the two shafts. Said shaft 9, details of which are shown in Figs. 2 and 4 of the drawings, has a worm gear 10 splined thereto intermediate the two hollow bosses 11 of the arms 12, which bosses are mounted upon the shaft 9 and are adapted to be actuated in opposite directions through the medium of the springs 13, one being adapted to be mounted upon either side of said pair of bosses. Said arms 12 are integral with a carriage 14 mounted to have a longitudinal movement against the plate 15, which is secured to the frame 15 through the medium of the bracket members 16, said frame 15 carrying the standards 46 upon which the polishing members are adapted to be held. Said plate 15, which is disposed in a vertical plane, carries studs 17 passing through slots 18 formed in the carriage, said studs serving to limit the movement of the carriage in opposite directions. It will be noted upon reference to Fig. 4: of the drawings that the plate 15 has recesses 19 therein through which the arms 12-pass and have a play.

Said carriage has a pivotal stud 20, shown clearly in Fig. 2 of the drawings, upon which two pinions, designated respectively by nu1nerals21 and 22, are pivoted, said pinions rotating together, said carriage also carrying the pivotal studs 23, 241 and 25 and upon which the pinions 2G, 27 and 28 respectively are journaled, the two pinions 27 and 28 being always in inesh with the pinion 21, while the pinion 26 is in mesh with the pinion 28. Mounted upon the under surface of the floor 29 of the machine is a rack bar 30, and 31 designates a gear wheel which is pivotally mounted upon a pinion 32 carried by the plate 15.

Referring to Figs. 2 and 4: of the drawings, a cam 33 will be seen which is fixed to the wall 84 of the frame, and 35 designates a movable cam having an outwardly eXtending arm 36 provided with a threaded aperture for the reception of the adjusting screw 37, said screw also having a bearing in an aperture in the post 88, shown in Fig. 2 of the drawings, the purpose of said screw being to adjust the cam 35 in different positions to cause the apparatus to be automatically actuated when it reaches a predetermined limit in one direction. Said cam 35 has an integral threaded stud 36 projecting through a slot 3% in the wall 3% and serves to guide the cam as it is moved back and forth by the rotation of the screw 37.

Hollow shells, designated respectively by numerals 39 and 10, one of which is shown in section in Fig. a of the drawings, are mounted in interiorly threaded bosses 11 formed in the carriage 1a and each shell has a longitudinal movement in a slot formed in the plate 15. Inverted L-shaped locking bolts, designated by numerals 412 and 12*, are mounted in said shells and are provided respectively with heads 1-3 and 4.4% movable within an enlarged chambered portion 141 formed in the lower end of the shell, and a coiled spring bears intermediate the head and the inner end wall of the chambered portion, the purpose of said springs being to normally throw the locking member so that its l.shaped end will either be held in con tact with the face of the plate 15 or in one of the recesses formed therein.

The operation of my invention will be readily understood and is as follows :A continuous rotary movement is imparted to the shaft 6, causing the worm l0 thereon to drive the gear wheel 22 and with it the two gear wheels27 and 28 which mesh with the gear wheel 21, the gear wheel 26 also being driven by its connection with the gear wheel 28. When the gear wheels are in the position shown in Fig. 2 of the drawings, the wheel 31 will be driven in the direction of the arrow by reason of its intermeshing with the pinion 26, thus causing the carriage to move in the direction of the arrowand the carriage will move to the left and carrying with it the polishing rollers which are supported upon the standards 16. When the inverted L-shaped head 43* of the bolt 42*" comes in contact with the inclined surface of the cam 35, said bolt will be given an inner longitudinal movement, sufficient to cause its L-shaped end to be withdrawn from the slot in the end of.the plate 15. It will be noted, however, that, as the carriage carrying the I spring-pressed bolts approaches its limit to the left, the coiled spring upon one end of the shaft 9 will be put under tension so that, when the L-shaped end 7 of the bolt 42* clears the slot, the tension of the spring will automatically cause the carriage let to make a longitudinal movement, the bosses 11 sliding upon the shaft 9 carrying with them the splined worm 10, the limit of movement of said carriage being determined by the lengths of the slots 18 through which the studs 17 pass. lVhen the pinion. 27 comes into mesh with the pinion 31, a reverse rotary movement will be imparted to the latter and the carriage will move in the opposite direction to its limit and, as the head 13 of the bolt 42 comes in contact with the stationary cam 83, an inward thrust will be imparted to the bolt 12, throwing its L-shaped cnd out of the slot 19, while the sprin upon the right side of the bosses 11, which will be put under tension when the carriage is moving to the right, will cause a reverse move ment to the carriage and the operation will be automatically repeated.

From the foregoing, it will be noted that, by a continuous rotary movement of the shaft 9 in one direction, the movement of the carriage, when it reaches its limit in one direction, will be reversed, thus causing the block to reciprocate when it reaches either end of the cylinder.

What I claim to be new is 1. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a, carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said inter-meshing gear wheels, said carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel j ournaled upon the movable frame in mesh with said rack bar, and releasing means upon the carriage for allowing the same to move in one direction or the other to cause the gear wheel upon the movable frame to rotate in one direction or the other.

2. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels ournaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said intermeshing gear wheels, said carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel 'journaled upon the movable frame in mesh with said rack bar, spring-pressed locking members upon said carriage, and means for releasing the locking members as the carriage approaches its limit in opposit directions. I i

8. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said intermeshing gear wheels, said carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel ournaled upon the movable frame in mesh with said rack bar, spring-pressed locking members upon'said carriage, cam members positioned in the paths of said s n-ing-pressed locking members and adapted to actuate the same as the carriage approaches its limit in opposite directions.

in automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said intermeshing gear wheels, said'carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel j ournaled uponvthe movable frame in mesh with said rack bar, spring-pressed locking members upon said carriage, a stationary cam member positioned in the path of one of said spring-pressed locking members and an adjustable cam in the path of the adjustable locking member, said locking members designed to engage said plate.

5. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted, to carry a polishing block, a plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, inter-meshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said intermeshing gear wheels, said carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel ournaled upon the movable frame in mesh with said rack bar, springpressed locking members mounted upon the carriage and having L-shaped ends normally engaging slots in said plate, and cams in the paths of the ends of said locking members.

6. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a[ plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said intermeshing gear wheels, said carriage having apertured springpressed bosses mounted upon said. driven shaft, a gear wheel j ournaled upon the movable frame in mesh with said rack bar, bosses mounted in threaded apertures in said plate, springpressed locking members m0vable within said bosses and having L-shaped ends for engagement with slots in the plate, a stationary cam mounted in the path of one of saiddocking members, and an adjustable cam in the path of the other of said locking members.

7. An automatic reversing means for machines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame, a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a carriage mounted upon the plate and having an independent movement thereon, intermeshing gear wheels journaled upon said carriage, a worm wheel splined to the driven shaft and in mesh with one of said inter-meshing gear wheels, said carriage having apertured spring-pressed bosses mounted upon said driven shaft, a gear wheel journaled upon the movable frame in mesh with said rack bar, bosses mounted in threaded apertures in said plate, spring-pressed locking members movable within said bosses and having L-shaped ends for engagement with slots in the plate, a stationary cam mounted in the path of one of said locking members, an adjustable cam in the path of the other of said locking members, and a screw mounted in a projection of the adjustable cam.

8. An automatic reversing means for ma chines for polishing copper rollers, comprising, in combination with a frame, a driven shaft, a stationary rack bar upon said frame,- a movable frame adapted to carry a polishing block, a plate projecting from said movable frame, a slotted carriage, studs projecting from the plate and movable through said slots and adapted to limit the movement of the carriage, intermeshing gear wheels upon the carriage, a gear wheel mounted upon the movable frame and in mesh with said rack bar and" adapted to intermesh with one or another of the gear wheels upon the carriage, projecting arms upon the carriage having bosses mounted upon the driving shaft, a worm splined to r the shaft, springs bearing against said bosses, spring-pressed locking members mounted upon the carriage, cams against which said locking members are adapted to contact to actuate the looking members.

NICHOLAS LAUDIERO.

Witnesses ANDREA CIMINO, AMERIGO DE SANTIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

